Astronomy and Astrophysics – Astrophysics
Scientific paper
2007-05-14
Astronomy and Astrophysics
Astrophysics
v1. 6 pages, 5 figures. To appear in the ASP Conference Series: "Transiting Extrasolar Planets Workshop", MPIA Heidelberg Germ
Scientific paper
Our incomplete understanding of the formation of gas giants and of their mass-radius relationship has motivated ground-based, wide-field surveys for new transiting extrasolar giant planets. Yet, astrophysical false positives have dominated the yield from these campaigns. Astronomical systems where the light from a faint eclipsing binary and a bright star is blended, producing a transit-like light curve, are particularly difficult to eliminate. As part of the Trans-atlantic Exoplanet Survey, we have encountered numerous false positives and have developed a procedure to reject them. We present examples of these false positives, including the blended system GSC 03885-00829 which we showed to be a K dwarf binary system superimposed on a late F dwarf star. This transit candidate in particular demonstrates the careful analysis required to identify astrophysical false positives in a transit survey. From amongst these impostors, we have found two transiting planets. We discuss our follow-up observations of TrES-2, the first transiting planet in the Kepler field.
Charbonneau David
O'Donovan Francis T.
No associations
LandOfFree
TrES Exoplanets and False Positives: Finding the Needle in the Haystack does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with TrES Exoplanets and False Positives: Finding the Needle in the Haystack, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and TrES Exoplanets and False Positives: Finding the Needle in the Haystack will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-365185